Matlab solve nonlinear equations with parameters

i did solve nonlinear equations and plotting but i need to modify this program to solve nonlinear equations with parameter

i dont really have any idea how to do it , can anyone help me please?

code below is the code for solving nonlinear equations and plotting that i did.

vectorx=input('Please enter the range of x in the form of starting value:spacing value:end value');
vectory=Myfunction(vectorx);

plot(vectorx,vectory)
hold on
grid on

xguess=input('Please Give the answer a guess');

X0=fzero(@Myfunction,xguess);
X1=fzero(@Myfunction,-xguess);
y0=Myfunction(X0)
plot(X0,y0,'r+')
plot(X1,y0,'r+')

Answer 1

[Matt J]

This link talks about different ways to define functions with additional parameters

http://www.mathworks.com/help/optim/ug/passing-extra-parameters.html